# KERIS AR vs Calibre

The clearest difference is iOS requirement: Calibre at 13.0 against KERIS AR's 15.0. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | KERIS AR | Calibre |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 days | — |
| Size | 280 MB | 86 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Visionaries777](https://appshunter.io/developer/498451582) | [Andreas Offermann](https://appshunter.io/developer/1879594396) |

## What reviewers say

### KERIS AR

[App page](https://appshunter.io/ios/app/keris-ar/id6747791108)

**Features:** macOS Compatibility

**In-app purchases:** none


### Calibre

[App page](https://appshunter.io/ios/app/calibre-watch-collector/id6760217871)

**In-app purchases:** none


## Frequently asked questions

### Is KERIS AR free?

KERIS AR is free to download, with no in-app purchases.

### Is Calibre free?

Calibre is free to download, with no in-app purchases.

### Do KERIS AR or Calibre have ads?

Neither KERIS AR nor Calibre shows ads.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*